package com.heima.article.service.Impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.apache.commons.lang3.StringUtils;
import javax.annotation.Resource;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Date;
import java.util.List;

@Service
@Transactional
@Slf4j
public class ApArticleServiceImpl  extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    // 单页最大加载的数字
    private final static short MAX_PAGE_SIZE = 50;
    private final static Integer MIN_PAGE_SIZE = 10;
    @Resource
    private ApArticleMapper apArticleMapper;
    @Resource
    private ApArticleConfigMapper apArticleConfigMapper;
    @Resource
    private ApArticleContentMapper apArticleContentMapper;
    @Resource
    private ArticleFreemarkerService articleFreemarkerService;

    /**
     * 根据参数加载文章列表
     * @param loadtype 1为加载更多  2为加载最新
     * @param dto
     * @return
     */
    @Override
    public  ResponseResult load(Short loadtype, ArticleHomeDto dto) {
        //1.校验参数
        Integer size = dto.getSize();
        if(size == null || size == 0){
            size = MIN_PAGE_SIZE;
        }
        size = Math.min(size,MAX_PAGE_SIZE);
        dto.setSize(size);

        //类型参数检验
        if(!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE)&&!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)){
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //文章频道校验
        if(StringUtils.isEmpty(dto.getTag())){
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }
        //时间校验
        if(dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if(dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        log.info("pageSize:{}",dto.getSize());
        log.info("type:{}",dto);
        //2.查询数据
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, loadtype);

        ResponseResult responseResult = ResponseResult.okResult(apArticles);
        return responseResult;
    }

    /**
     * 保存app端相关文章
     * @param dto
     * @return
     */
    @Override
    public ResponseResult saveArticle(ArticleDto dto) {

        //1.检查参数
        if(dto == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }
        ApArticle apArticle=new ApArticle();
        BeanUtils.copyProperties(dto,apArticle);
        if(dto.getId() == null){

            save(apArticle);
            ApArticleConfig apArticleConfig=new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);

            ApArticleContent apArticleContent=new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(apArticleContent);

        }else {

            updateById(apArticle);
            ApArticleContent apArticleContent=apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId,dto.getId()));
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(apArticleContent);

        }
        //异步调用 生成静态文件上传到minio中
        articleFreemarkerService.buildArticleToMinIO(apArticle,dto.getContent());
        return ResponseResult.okResult(apArticle.getId());
    }
}
